Install ConTeXt in CI

Author: flying-sheep

.circleci/config.yml

@@ -17,7 +17,7 @@ jobs:
       - run: sudo apt update
       # <https://stackoverflow.com/a/44333806/353337>
       - run: DEBIAN_FRONTEND=noninteractive sudo apt install tzdata
-      - run: sudo apt install -y texlive-latex-base texlive-latex-extra
+      - run: sudo apt install -y texlive-latex-base texlive-latex-extra context
       - run: pip3 install -U pytest pytest-cov excode --user
       - checkout
       - run: excode README.md test/zzz_readme_test.py --filter python,test

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
         python-version: "3.x"
     - uses: actions/checkout@v1
     - name: Install dependencies
-      run: sudo apt-get install -y texlive-latex-base texlive-latex-extra python3-tk python3-scipy
+      run: sudo apt-get install -y texlive-latex-base texlive-latex-extra context python3-tk python3-scipy
     - name: Install package
       run: |
         pip install --upgrade pip